package main

import (
	"fmt"
	"time"
)

const PI = 3.14159

const (
	e  = 2.71828182845904523536028747135266249775724709369995957496696763
	pi = 3.14159265358979323846264338327950288419716939937510582097494459
)

const noDelay time.Duration = 0
const timeout = 5 * time.Minute

func main() {

	fmt.Printf("%T %[1]v \n", noDelay)
	fmt.Printf("%T %[1]v \n", timeout)
	fmt.Printf("%T %[1]v \n", time.Minute)

}
